IECEx ASSESSMENT AND TEST REPORT - Эрвист · 2018. 5. 28. · IECEx ASSESSMENT AND TEST REPORT Page of ATR600790/Version 3 Page 3 of 51 Reference No: IEC 60079-0 Results Clause

IECEx ASSESSMENT AND TEST REPORT Section 1

To be completed by ACB

ATR600790/Version 3 Page 1 of 51

Reference No: IEC 60079-0

Standard:

IEC 60079-0 : 2000 Edition 3.1

Electrical apparatus for explosive gas atmospheres – General requirements

Instructions for use The comment columns can be used to e.g. specify test values, applied alternative requirements/tests or to refer to enclosed additional pages with comments. Abbreviations: N/A = Not applicable (for the assessment/test of the equipment and its design documentation)

The applicant is the body/person who has requested the assessment/test and to which the results, as specified in this report, are provided. The short descriptions in the column for "Clause" do not replace the complete text in the standard.

Field of application

This form is intended to be used when assessing and testing electrical apparatus for explosive atmospheres according to the standard specified in the adjoining column. The test results are valid for the tested items only. Reproduction This report must not be reproduced other than in its entirety except with the prior written approval of the issuing body This test report may only be used for the IECEx Scheme and must be accompanied by an ATR cover page issued by an ACB

This ATR covers the consolidated version of IEC 60079-0 which is based on the third edition (1998), incorporating amendment 1 (2000)

Product name Model/Type designation

Serial No Code (e.g. Ex II T ) Ambient temperature [min-max]

Applicant [name and postal address] Manufactured by [name and postal address]

Test sample received [date]

Product description

The equipment complies with the standard [yes/no]

Prepared by

Date [year-month-day]

[signature]

IECEx ASSESSMENT AND TEST REPORT Page of

ATR600790/Version 3

Page 2 of 51


Results

Clause

Pass Fail N/A Comments ACB Review

1 Scope

2 Normative references

3 Definitions and symbols

4 Apparatus grouping and temperature classification

5.1 Maximum surface temperature

5.2 Ambient temperatures

5.3 Surface temperature and ignition temperature

6 Requirements for all apparatus

7 Non-metallic enclosures and non-metallic parts of enclosures

8 Enclosures containing light metals

9 Fasteners

10 Interlocking devices

11 Bushings

12 Materials used for cementing

13 Ex components

14 Connection facilities and terminal compartments

15 Connection facilities for earthing or bonding conductors

16 Cable and conduit entries

17 Supplementary requirements for rotating electrical machines

18 Supplementary requirements for switchgear

19 Supplementary requirements for fuses

20 Supplementary requirements for plugs and sockets

21 Supplementary requirements for luminaires

22 Supplementary requirements for caplights, caplamps and handlamps


ATR600790/Version 3

Page 3 of 51


Results

Clause


23.2 Verification of documents

23.3 Compliance of prototype or sample with documents

23.4.1 Type tests, General

23.4.3.1 23.4.3.3

Test for resistance to impact/Required results

23.4.3.2 23.4.3.3

Drop test/Required results

23.4.4 Tests for the degree of protection IP by enclosures

23.4.5 Torque test for bushings

23.4.6.1 Temperature measurement

23.4.6.2 Thermal shock test

23.4.7 23.4.7.1

Tests of non-metallic enclosures or of non-metallic parts of enclosures/Ambient temperatures during tests

23.4.7.2 Tests of enclosures or parts of enclosures in plastic materials

23.4.7.3 Thermal endurance to heat

23.4.7.4 Thermal endurance to cold

23.4.7.5 Resistance to light

23.4.7.6 Resistance to chemical agents for Group I electrical apparatus

23.4.7.8 Insulation resistance test of parts of enclosures of plastic materials

23.4.8 Tests in explosive mixtures

24 Routine verifications and tests

25 Manufacturer's responsibility Manufacturer's responsibility (based on applying markings) to perform routine verifications

26 Verifications and tests on modified or repaired electrical apparatus

27 Marking


ATR600790/Version 3

Page 4 of 51


Results

Clause


Annex B — Ex cable entries

B.1 General

B.2.1 B.2.2 Cable sealing/Materials

B.2.3 Clamping

B.2.4 Lead-in of cable

B.3.1 Tests of clamping of non-armoured and braided cables

B.3.2 B.3.2.1

Tests of clamping of armoured cables/Tests of clamping where the armourings are clamped by a device within the gland

B.3.2 B.3.2.2

Tests of clamping of armoured cables/Tests of clamping where the armourings are not clamped by a device within the gland

B.3.3 Ageing test for material used for elastomeric sealing rings

B.3.4 Type test for resistance to impact

B.3.5 Type test for degree of protection (IP) of cable entries

B.4.1 Marking of cable entries

B.4.2 Marking of cable sealing rings

Annex C

Table C.1 – Clauses with which Ex components shall comply


Section 2 EVALUATION RECORD To be completed by ExTL

IEC 60079-0 2000 (1998 edition Incorporating Amdt. 1 2000) Electrical apparatus for explosive gas atmospheres -

Part 0: General requirements

Report

Reference No. Tested by ( + signature) .......................................................... Approved by (+ signature).................................................... Date of issue ........................................................................... Content ................................................................................... ................................................................................................

.............................................................................................. ...............................................................................................

This report is based on a standard format prepared by CSA International Client Name ...................................................................................... Address................................................................................... ................................................................................................

Evaluation Record Form No. ATR600790/Ed. 3................. Copyright reserved to the bodies participating in the IECEx Scheme Testing laboratory

Name ...................................................................................... Address................................................................................... Testing location ...................................................................... ................................................................................................

Test item Standard IEC 60079-0 ............................................................ Description. ............................................................................ Trademark. ............................................................................. Model and/or type reference ................................................... Manufacturer ..........................................................................


Test Item (continued) Rating(s) ................................................. ............................................. ................................................................ ............................................. Type of transformers (where relevant).... Application ........................................................................................... Protection index.................................................................................... Other characteristics ............................................................................. Rated ambient temperature ta (OC)

stationary / portable / hand-held IP

Other information


General remarks This evaluation record is not valid unless appended to an IECEx Assessment and Test Report issued by an ACB, in accordance with IECEx 02. This evaluation record shall not be reproduced except in full without the written approval of the testing laboratory. The test results presented in this evaluation record relate only to the item tested. Copy of marking plate

REPORT No ISSUER Page of

Prepared by

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Date [yy-mm-dd]


MANUFACTURER'S DOCUMENTS Item Subject Drawing No Rev. Date


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Date [yy-mm-dd]


Evaluation Record IEC 60079-0 COVERAGE 1/4 APPLIED

CLAUSE REQUIREMENTS YES NO ENCL.

1 Scope


Apparatus:

Scope The electrical apparatus defined above is feasible for coverage for use in explosive gas atmospheres in accordance with the general requirements addressed by this part of IEC 60079:

YES NO Notes: Protection techniques Specific types of protection: Applied to Item (apparatus or part of apparatus):

Flameproof enclosures "d" (IEC 60079-1) Pressurized enclosures "p" (IEC 60079-2) Powder filling "q" (IEC 60079-5) Oil-immersion "o" (IEC 60079-6) Increased safety "e" (IEC 60079-7) Intrinsic safety "i" (IEC 60079-11) Encapsulation "m" (IEC 60079-18) Type of protection "n" (IEC 60079-15)

Caplights for mines susceptible to firedamp (IEC 60079-22) Form sheets included for specific coverage in this report: SUPPLEMENTARY REQUIREMENTS, Sheet 1/6, Supplementary requirements for rotating electrical machines SUPPLEMENTARY REQUIREMENTS, Sheets 2/6 and 3/6, Supplementary requirements for switchgear SUPPLEMENTARY REQUIREMENTS, Sheet 3/6, Supplementary requirements for fuses SUPPLEMENTARY REQUIREMENTS, Sheet 4/6, Supplementary requirements for plugs and sockets SUPPLEMENTARY REQUIREMENTS, Sheet 5/6, Supplementary requirements for luminaires SUPPLEMENTARY REQUIREMENTS, Sheet 6/6, Supplementary requirements for caplights, caplamps and handlamps ANNEX B — Ex CABLE ENTRIES, Sheets 1/9 through 9/9 (normative) ANNEX C — Ex COMPONENTS, Sheets 1/2 and 2/2 (normative)

(IEC60079-0, 2000)


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IEC 60079-0 COVERAGE 2/4 APPLIED



Normative references The electrical apparatus has been assessed to the most recent editions of the standards which are referenced and posted as provisions of this part of IEC 60079: YES NO Notes: Overview:

(IEC60079-0, 2000)


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3 Definitions and symbols

4 Apparatus grouping and temperature classification

5.1 Maximum surface temperature

5.2 Ambient temperatures Note: Sheets 3/4 and 4/4 cover one item of electrical apparatus. Item:

Definitions and symbols All definitions and symbols covered in Clause 3 apply, as noted for the specific requirements herein

Degree of protection of enclosure (IP ) by apparatus enclosure for the type of protection Degree of protection of enclosure (IP ) by (other enclosure):

Ex cable entry

Ex component Apparatus grouping and temperature classification Group I Groups I/II Groups I/IIC Groups I/IIB Groups I/IIA Group II Group IIC Group IIB Group IIA Specific gas/vapour (Groups I/II or Group II):

Apparatus (Group II) marked as a function of maximum surface temperature of ΕC

Maximum surface temperature Group I, maximum surface temperature (ref. manufacturer's document, ): ≤ 150 ΕC (coal dust can form a layer) ≤ 450 ΕC (coal dust is not expected to form a layer due to ), in which case:

actual maximum surface temperature ( ΕC) is marked or marking includes symbol X re safe use

Group II apparatus, based on maximum surface temperature: Note: Cable entries excluded.

classified in temperature class, T1 (# 450 ΕC) T2 (# 300 ΕC) T3 (# 200 ΕC) T4 (# 135 ΕC) T5 (# 100 ΕC) T6 (# 85 ΕC) or defined by actual maximum surface temperature or restricted to a specific gas ( ) Ambient temperatures !20 ΕC to + 40 ΕC (normal range) special range ( ), denoted by symbol Ta ,Tamb or X (see Marking)

Note: Special range of ambient temperatures as stated by the manufacturer and specified in the certificate.

(IEC60079-0, 2000)


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5.3 Surface temperature and ignition temperature

6 Requirements for all apparatus Surface temperature and ignition temperature Lowest ignition temperature of explosive atmospheres concerned: ΕC

Required: > maximum surface temperature, except components having a total surface area ≤ 10 cm2 Components having total surface area ≤ 10 cm2; verified as no risk for ignition:

Verified for temperature class (Group II) or Group I maximum surface temperature

Safety Margin

50K 25K

T1, T

2, T

3 T4

, T5,

T6,

G

roup

I Component

Max

imum

surf

ace

tem

pera

ture

>

valu

e fo

r T c

lass

(Gp

II) o

r >

Gp

I max

. sur

face

tem

pera

ture

(Ε

C)

(X) (X)

Ver

ifica

tion

tem

pera

ture

(Ε

C)

safety margin ensured by experience of similar components or by tests in representative explosive mixtures (safety margin may be provided by increasing ambient temperature) and, in the case of type of protection "i", subject to the specific relaxations for the surface temperature of small components in accordance with IEC 60079-11

Rationale / Test Method

Requirements for all apparatus

The applicable requirements in the forms which follow are supplemented or modified per accompanying forms for specific types of protection.

Delayed opening of enclosures:

Incorporated capacitors Hot components Components considered Warningmarked

Lim

iting

val

ue o

f res

idua

l di

scha

rge

ener

gy (m

J) a

t ca

paci

tor c

harg

ing

volta

ge

≥ 20

0 V

< 20

0 V

(X) (X)

AFT

ER D

E-EN

ERG

ISIN

G, D

ELA

Y

Y M

INU

TES

BEFO

RE

OPE

NIN

G

DO

NO

T O

PEN

WH

EN A

N E

XPL

OSI

VE

GA

S A

TMO

SPH

ERE

MA

Y B

E PR

ESEN

T Group

Tim

e to

dis

char

ge to

lim

iting

val

ue

T Class

Com

pone

nt su

rfac

e te

mpe

ratu

re

(ΕC

)

Tim

e to

coo

l to

val

ue <

T C

lass

Tim

e re

quire

d to

ope

n en

clos

ure

(X) (X)

I, IIA 0.2 0.4 IIB 0.06 0.12

II, IIC 0.02 0.04

Note: A marked warning is required if Y (the greater value of capacitor discharge and cooling times recorded above) > time to open enclosure.(IEC60079-0, 2000)


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IEC 60079-0 CONSTRUCTION 1/7 APPLIED


7 Non-metallic enclosures and non-metallic parts of enclosures

Item: Non-metallic enclosures and non-metallic parts of enclosures Note: For sealing rings proof per B.3.3 is sufficient. Generic name of material: Minimum thickness, mm Specifications: manufacturing process of enclosure or part; ref. manufacturer's documents, plastic material; ref. manufacturer's documents, , which include

manufacturer's name exact and complete reference Required: Including colour, % fillers, additives surface treatment

temperature index, TI Required: TI at 20 000 h point on thermal endurance graph without loss of flexural strength exceeding 50%, per IEC 60216-1 and IEC 60216-2 and based on flexing property per ISO 178; if material does not break in this test before exposure to heat, TI to be based on tensile strength per ISO 527-2 (type 1A or 1B test bars)

Note: The testing station is not required to verify compliance of the material with its definition. Thermal endurance: temperature of hottest point of enclosure/part of enclosure at maximum service ambient, °C

Required: ≤ TI minus 20K refer to TYPE VERIFICATIONS AND TESTS, Temperature measurement refer to TYPE VERIFICATIONS AND TESTS, Thermal endurance to heat refer to TYPE VERIFICATIONS AND TESTS, Thermal endurance to cold Electrostatic charges on enclosures or parts of enclosures of plastic material:

Enclosure surface/part considered Other protective method

War

ning

labe

l re

safe

ty m

easu

res

Group

Surface area not subject to test (cm2)

Actual surface

area (cm2)

Insulation resistance

(Ω) (23 ± 2) °C & (50 ± 5) % RH

Required: ≤ 1 GΩ (X)

I ≤ 100 ≤ 100

IIA, IIB ≤ 400a

≤ 20 IIC

≤ 100b

a Where the exposed areas are surrounded by conductive earthed frames. b Where additionally protected against occurrence of dangerous electrostatic charges. refer to TYPE VERIFICATIONS AND TESTS, Insulation resistance test of parts of enclosures of plastic materialsThreaded holes: (details of compatible thread size/form/depth of tapping and type/length for fasteners of covers removable in service)

(IEC60079-0, 2000)


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8 Enclosures containing light metals

9 Fasteners

Item: Enclosures containing light metals

Type and generic name of alloy Composition of alloy Fabrication Min. thickness (mm)

Group I apparatus; specific material content, by mass, in total of aluminum, magnesium and titanium: ≤ 15 % and, in total, ≤ 6 % magnesium and titanium

Note: Not applicable to Group I surveying instruments carried by persons. Threaded holes: (details of compatible thread size/form/depth of tapping and type/length for fasteners of covers removable in service) Fasteners (used on ) Refer to form(s) for specific type(s) of protection ( ) Fastenings necessary to achieve a standard type of protection or to prevent access to uninsulated live parts: removable only by use of a tool; (details) Fastening screws (head type(s); ): light alloy (composition; ) plastics ( ) other material ( ) compatible with enclosure material (reason)

Note: Screws for light alloy enclosures may be made of light alloy, plastics or other materials if compatible with the enclosure material.

Special fasteners: 1 3

Use

d on

:

2 4

Hex

agon

hea

d bo

lt

ISO

401

4

Hex

agon

hea

d sc

rew

ISO

401

7

Hex

agon

nut

ISO

403

2

Hex

agon

sock

et h

ead

cap

scre

w

ISO

476

2

Hex

agon

sock

et

set s

crew

IS

O 4

026

(flat

poi

nt)

ISO

402

7 (c

one

poin

t) IS

O 4

028

(dog

poi

nt)

ISO

402

9 (c

up p

oint

)

coar

se p

itch

(ISO

262

) 6g

/6H

tole

ranc

e fit

(IS

O 9

65)

Fast

ener

(X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X)

Size (M __)

(X) (X)

Head protection (Group I)

(e.g. shroud, counterbore)

1 2 3 4

continued on Sheet 3/7 (IEC60079-0, 2000)


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9 Fasteners (continued)

10 Interlocking devices

11 Bushings

12 Materials used for cementing

Item: Fasteners (continued) Electrical apparatus − holes for special fasteners:

Reduced shank

fastener

Hexagon socket

set screw

6H h

ole

thre

ad to

lera

nce

fit

(ISO

965

) ≤

H13

tole

ranc

e fit

(c, f

ig. 1

) per

ISO

286

-2

at c

lear

ance

hol

e

hole

und

er h

ead/

nut t

hrea

ded

to

enab

le fa

sten

er re

tent

ion

co

ntac

t dim

ensi

on ( X

, fig

. 2)

≥ v

alue

for s

tand

ard

faste

ner

6H to

lera

nce

fit

(ISO

965

) tig

hten

ed sc

rew

doe

s not

pr

otru

de fr

om th

read

ed h

ole

Fast

ener

(re

f. Sh

eet 3

/7, S

peci

al fa

sten

ers)

Major dia. of fastener

thread (mm)

Hole threading distance

h, figs. 1, 2 (mm)

≥ major dia. of fastener

thread

(X) (X) (X) (X) (X) (X)

1

2 3

4

Interlocking devices Details: interlocking device cannot be defeated by the use of normally available tools (e.g. screwdriver, pliers)

Bushings Means to prevent turning: ref. TYPE VERIFICATIONS AND TESTS, Torque test for bushings Materials used for cementing Applied to: Material: temperatures to which the material will be subjected, based on apparatus rating:- lowest, ΕC Required: equal to or higher than the limiting value for the material highest, ΕC Required: at least 20 K below the limiting value for the material Thermal stability ; ref. specifications per manufacturer's document(s):

Note: The testing station is not required to verify the characteristics specified in the manufacturer's documents. (IEC60079-0, 2000)


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13 Ex components

Item: Ex components (e.g. empty enclosure or components/assemblies of components for use with apparatus complying with one or more types of protection) Details:

ref. ANNEX C Clauses with which Ex components shall comply Mounting: completely within apparatus enclosure;

Ex component evaluated as a component part of the apparatus qualification as a separate Ex component is adequate for use of the component completely external to apparatus;

Ex component/enclosure interface evaluated for the relevant type of protection; reference/details:

Ex component/enclosure interface is subject to the following mechanical tests: resistance to impact drop ref. TYPE VERIFICATIONS AND TESTS, Sheets 2/12, 3/12 qualification as a separate Ex component is adequate for use of the component partly within/partly external to apparatus;

Ex component/enclosure interface evaluated for the relevant type of protection; reference/details:

Ex component/enclosure interface is subject to the following mechanical tests: resistance to impact drop ref. TYPE VERIFICATIONS AND TESTS, Sheets 2/12, 3/12 qualification as a separate Ex component is adequate for use of the component

(IEC60079-0, 2000)


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14 Connection facilities and terminal compartments

15 Connection facilities for earthing or bonding conductors

Item: Connection facilities and terminal compartments Permanently connected cable; (details/reference) free end of cable terminated; (method/reference)

free end of cable unterminated Required: Apparatus shall be marked with symbol X to indicate the need for appropriate connection of the free end of the cable

Terminal compartment (type of protection, Ex ):

Terminal compartment for: Dimensions of terminal compartment Dimensions of access opening

design ensures that conductors can be readily connected design ensures that clearances/creepage distances are not compromised by proper connection of conductors Connection facilities for earthing or bonding conductors Provision for connection of earthing or equipotential bonding conductor: external connection facility not required; i.e. apparatus (with metallic enclosure) designed to be moved when

energised and having appropriate conductor in supply cable earthing/bonding not necessary (e.g. double or reinforced insulation) inside terminal compartment; (location, capacity, *conductor size) *Required: Accommodate at least one conductor of size as in table 3 outside metallic enclosure; (location, **capacity, conductor size) **Required conductor capacity ≥ 4 mm2 protected against corrosion; means to prevent loosening/twisting of conductors; means to ensure that contact pressure is maintained;

Light alloy parts are used: NO YES; (corrosion protection)

(IEC60079-0, 2000)


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16 Cable and conduit entries

Item: Cable and conduit entries

1 3 2 4 Specifications per manufacturer's document(s) Characteristics

Separate from apparatus

Cabl

e en

try

Con

duit

entry

po

sitio

n on

ap

para

tus

max

. num

ber

perm

itted

inte

gral

par

t of

appa

ratu

s

Ex c

ompo

nent

insta

lled

with

ap

para

tus

ref.

AN

NE

X B

(c

able

ent

ry)

Circ

uit

(X) (X) (X) (X)

Document reference i.e. specifications and, where applicable,

construction Size(s)/size range

(X) (X) (X)

Manufacturer, Part No.

(X)

1

2

3

4

Note: Cable and conduit entries shall be constructed and fixed so as not to alter the type of protection of the apparatus.

Group I cable entry of design such that twisting of the cable can be transmitted to the connections: anti-rotation device fitted (details) Entry by conduit: threaded hole; (size(s)) plain hole (size(s)/locking means) in enclosure wall(s) or in adaptor plate in/on enclosure; (details) or



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16 Cable and conduit entries (continued)

Item: Cable and conduit entries (continued) Entry by conduit: (continued) into a stopping box:- integral with wall of enclosure

attached to wall of enclosure; (details) Closing of openings not fitted with cable or conduit entries: blanking element provided; (details) Note: Blanking elements, together with the enclosure wall of the apparatus, shall concur with the type of protection concerned. means ensuring that blanking element is removable only with the aid of a tool; details: Elevated temperature under rated conditions ( ) at entries: > 70 °C at entry point > 80 °C at branching point of conductors

label affixed as a guide to selection of cable or of wiring in conduit; details:

(IEC60079-0, 2000)


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IEC 60079-0 SUPPLEMENTARY REQUIREMENTS 1/6 APPLIED


17 Supplementary requirements for rotating electrical machines

Item: Supplementary requirements for rotating electrical machines Ventilation openings for external fans: degree of protection: air inlet side, IP (at least IP20); air outlet side, IP (at least IP10) ingress protection verified according to IEC 60034-5; (reference) for vertical machines, means to prevent foreign bodies from falling into ventilation openings: Note: For Group I rotating machines degree of protection IP10 is adequate only when objects > 12.5 mm cannot be carried onto moving parts either by falling vertically or by vibration. Construction and mounting of the ventilating systems (e.g. fans, fanhoods, screens): means preventing distortion and displacement of parts to avoid impact or friction with rotating parts: refer to TYPE VERIFICATIONS AND TESTS, Test for resistance to impact Clearances for the ventilating system (external fan and hood, screen and fasteners):

*Clearance Fan max. dia. (mm) (mm) Between fan and (part):

Criteria supporting minimum clearance of 1mm for opposing parts manufactured for dimensional accuracy and stability

*Clearances are required to be ≥ 1⁄100 maximum fan diameter and ≥ 1mm (clearances need not exceed 5mm)

Materials for external fans and fanhoods:

Insulation resistance

Plastic (thermal stability)

Light metal (composition)

Group I

≤ 1

GΩ

re

f. T

YPE

VE

RIF

ICA

TIO

NS

AN

D T

EST

S, S

heet

10/

12

Gro

up II

mac

hine

; not

con

sider

ed

(per

iphe

ral f

an sp

eed

< 50

m/s

)

*exc

eeds

max

imum

serv

ice

tem

pera

ture

by

at le

ast 2

0 K

≤

15%

tota

l of a

lum

inum

, m

agne

sium

, tita

nium

and

≤

6% to

tal o

f mag

nesiu

m

and

titan

ium

≤ 6%

mag

nesi

um (G

roup

II)

Part

fan, fanhood, ventilation screen, etc.

Material

(X) (X) (X) Man

ufac

ture

r's sp

ecifi

ed o

pera

ting

tem

pera

ture

*(°

C)

(X) (X) (X) (X)

(IEC60079-0, 2000)


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18 Supplementary requirements for switchgear

Item: Supplementary requirements for switchgear Ratings: Immersed contacts: non-flammable dielectric material ( ) Disconnector not designed to be operated under the intended load: electrically or mechanically interlocked with a suitable load breaking device; (method) or (Group II only) marked (near the actuator) with the warning DO NOT OPERATE UNDER LOAD Disconnector included with switchgear: disconnects all poles

contact position visible, or open position reliably indicated; (method)

Note: Refer to IEC 60947-1; i.e. symbol "Ο" (power off) and, in two push-button systems, designated by red button or button marking. For indication by actuator position the actuator must automatically stay in a position corresponding to that of the moving contacts and requires two distinct rest positions; a third distinct rest position may be provided for automatic opening.

cover/door interlock ( design allows opening only when separation of contacts is effective); (method)

Group I switchgear: means for padlocking operating mechanism of disconnector in open position; (details)

short-circuit relay ( latch-out provision)

earth fault relay ( latch-out provision)

local relay resetting device accessible from outside the enclosure; (details)

special fastener for access cover refer to CONSTRUCTION Sheets 2/7 and 3/7, Fasteners, Special fasteners



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18 Supplementary requirements for switchgear (continued)

19 Supplementary requirements for fuses

Item: Supplementary requirements for switchgear (continued) Access to enclosure(s) containing remotely operated circuits with non-manual switching contact make/break means: door(s)/cover(s) interlocked with a disconnector, preventing access to interior unprotected circuits; (method) or door(s)/cover(s) marked with warning DO NOT OPEN WHEN ENERGISED

Alternative method of protection Internal supplementary enclosure

clea

ranc

e an

d cr

eepa

ge d

ista

nces

bet

wee

n ph

ases

(pol

es) a

nd to

ear

th p

er IE

C 60

079-

7

refe

r to

form

s for

IEC

600

79-7

degr

ee o

f pro

tect

ion

(ref.

IEC

605

29)

at le

ast I

P30

m

arke

d w

ith w

arni

ng

DO

NO

T O

PEN

WH

EN E

NER

GIS

ED

Internal parts intended to remain energised after operation of the disconnector

Type

of p

rote

ctio

n (E

x

)

refe

r to

form

s for

IEC

600

79-

(X) (X)

Manufacturer's drawing(s) reference

(IP) (X)

Supplementary requirements for fuses Enclosure containing fuse(s);

interlocked so that:- removal of replaceable element(s) is possible only with the supply disconnected fuse(s) cannot be energised until the enclosure is correctly closed (method) apparatus is marked with the warning DO NOT OPEN WHEN ENERGISED (alternative to the above requirements)

(IEC60079-0, 2000)


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20 Supplementary requirements for plugs and sockets

Item: Supplementary requirements for plugs and sockets

Note: Plugs and components remaining energised when not engaged with a socket are not permitted.

1 2 Interlock or equivalent means Alternatively

Interlock Design provision

mec

hani

cal

elec

trica

l

cann

ot b

e se

para

ted

with

con

tact

s ene

rgis

ed

cann

ot b

e en

ergi

sed

whe

n se

para

ted

fixed

toge

ther

by

spec

ial f

aste

ners

ref.

CO

NST

RU

CT

ION

She

ets 2

/7, 3

/7,

Fast

ener

s, Sp

ecia

l fas

tene

rs

*mar

ked

with

war

ning

D

O N

OT

OPE

N W

HEN

EN

ERG

ISED

ca

nnot

be

de-e

nerg

ised

befo

re se

para

tion

(con

nect

ed to

a b

atte

ry)

( *al

tern

ativ

ely)

mar

ked

SEPA

RA

TE O

NLY

IN

A N

ON

-HA

ZAR

DO

US

AR

EA

Plug

/soc

ket i

dent

ifica

tion

or c

ircui

t

(X) (X) (X) (X)

Method

(X) (X) (X) (X) (X)

1

2

Plugs and sockets rated 10A or less, 250 V a.c. or less, 60 V d.c. or less: (i.e. exempted from compliance with the above) 1 2 Current break with delayed release

only

sock

et o

utle

t rem

ains

ene

rgis

ed

arc

extin

guish

ed b

efor

e se

para

tion

of p

lug

and

sock

et

plug

and

sock

et re

mai

n fla

mep

roof

du

ring

arc

quen

chin

g pe

riod

refe

r to

form

s for

IEC

600

79-1

Plug

/soc

ket i

dent

ifica

tion

or c

ircui

t

Rating

(X) (X)

Method

(X) (X) type

of p

rote

ctio

n fo

r con

tact

s rem

aini

ng

ener

gise

d (E

x )

re

fer t

o fo

rms f

or IE

C 6

0079

-

1

2

(IEC60079-0, 2000)


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21 Supplementary requirements for luminaires

Item: Supplementary requirements for luminaires Type of lamp and ratings: Note: Lamps containing free metallic sodium are not permitted (e.g. low pressure sodium lamps per IEC 60192). light transmitting cover of additional protective guard (material, ;

mesh size, ) Required: mesh size ≤ 50 mm squares refer to TYPE VERIFICATIONS AND TESTS, Test for resistance to impact (cover and guard) Mounting provision:

Notes: 1. Mounting shall not depend on a single screw. 2. A single integral eyebolt (i.e. cast or welded to enclosure or locked against loosening if threaded) may be used. Luminaires other than intrinsically safe: Access cover(s) for lampholder and other internal parts of luminaire other than intrinsically safe (IEC 60079-11: interlocked with a device automatically disconnecting all poles as soon as cover opening procedure begins; (method) or cover(s) marked with warning DO NOT OPEN WHEN ENERGISED

Alternative method of protection Internal supplementary enclosure

can be reflector for light source

disc

onne

ctin

g de

vice

not

man

ually

ope

rabl

e to

in

adve

rtenl

y en

ergi

se u

npro

tect

ed p

arts

cl

eara

nce

and

cree

page

dis

tanc

es b

etw

een

pha

ses (

pole

s) a

nd to

ear

th p

er IE

C 6

0079

-7

refe

r to

form

s for

IEC

600

79-7

degr

ee o

f pro

tect

ion

(ref.

IEC

605

29)

at le

ast I

P30

m

arke

d w

ith w

arni

ng

DO

NO

T O

PEN

WH

EN E

NER

GIS

ED

Internal parts intended to remain energised after operation of the disconnecting device

(other than lampholder)

Type

of p

rote

ctio

n (E

x

)

refe

r to

form

s for

IEC

600

79-

(X) (X) (X)

Manufacturer's drawing(s) reference

(IP) (X)

(IEC60079-0, 2000)


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22 Supplementary requirements for caplights, caplamps and handlamps

Item:

Supplementary requirements for caplights, caplamps and handlamps Caplights for Group I: (requirements under consideration) Caplamps for Group II and hand lamps: Battery: (type)

(electrolyte) Materials of construction:

Part Composition Verification of resistance to electrolyte

Measures to prevent leakage of electrolyte, considering all positions of the apparatus: Connecting cable for separately enclosed light source and supply source with no other mechanical connection: refer to ANNEX B, Tests of clamping of non-armoured and braided cables refer to ANNEX B, Tests of clamping of armoured cables

(IEC60079-0, 2000)


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IEC 60079-0 TYPE VERIFICATIONS AND TESTS 1/12 APPLIED


23.1 General

23.2 Verification of documents

23.3 Compliance of prototype or sample with documents

23.4.1 Type tests, General

Item: General Prototype/sample(s) of electrical apparatus used to verify compliance with relevant requirements of this standard: Prototype/sample(s) of electrical apparatus used to verify compliance with relevant requirements of standard(s) for specific type(s) of protection: as above or Verification of documents the manufacturer's documents that were considered in the evaluation are listed in this report

the manufacturer's documents specifying the design and safety aspects of the electrical apparatus address the requirements of IEC 60079-0 and those parts of IEC Publication 60079 specific to the type of protection

Compliance of prototype or sample with documents a prototype or sample of the electrical apparatus was found to comply with the listed documents Type tests, General

the prototype/sample was tested in accordance with the requirements of IEC 60079-0 and those parts of IEC Publication 60079 specific to the type of protection concerned.

Notes: 1. Tests shall be made in the laboratory of the testing station or elsewhere under the supervision of the testing station. 2. The testing station shall not conduct tests which have already been carried out on an Ex component.

3. Each test shall be made in that configuration of the apparatus considered the most unfavourable by the testing station. 4. The testing station shall call for any modifications that it considers to be needed for compliance.

Record of tests judged to be unnecessary and justification for tests omitted: Note: Excluding Ex components which have already undergone the relevant tests.

(IEC60079-0, 2000)


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23.4.3.1/23.4.3.3 Test for resistance to impact/Required results

Item: Test for resistance to impact/Required results

Gp I, Gp II Gp I Gp I

follo

win

g te

sts o

f the

rmal

en

dura

nce

follo

win

g te

sts o

f re

sist

ance

to o

ils a

nd

grea

ses

follo

win

g te

sts o

f re

sist

ance

to h

ydra

ulic

liq

uids

refe

r to

TY

PE V

ER

IFIC

AT

ION

S A

ND

TE

STS,

She

et 6

/12,

T

ests

of e

nclo

sure

s or

part

s of

encl

osur

es in

pla

stic

mat

eria

ls

Plastic materials following conditioning tests: The places of impact shall be on the external parts exposed to impact. If the enclosure is protected by another enclosure, only the external parts of the assembly shall be subjected to the resistance to impact tests. Tests shall be made at the maximum ambient in service, increased by 10K to 15K,and at the minimum ambient in service, reduced by 5K to 10 K.

(X) (X) (X)

1 2 3 4

Conditions ResultsLight-transmitting part Impact application

Impact energy (J) Enclosure/part guard, protective cover, fanhood, cable entry incl.

Impact energy (J)

Without guard With guard

tested without guard

two impacts at separate places

on each of two samples

(except for light- transmitting parts

made of glass)

Glass light- transmitting

parts single impact

on each of three samples

high

risk

(Gro

up I)

low

risk

(Gro

up I)

hi

gh ri

sk (G

roup

II)

low

risk

(Gro

up II

)

high

risk

(Gro

up I)

low

risk

(Gro

up I)

hi

gh ri

sk (G

roup

II)

low

risk

(Gro

up II

)

high

risk

(Gro

up I)

low

risk

(Gro

up I)

hi

gh ri

sk (G

roup

II)

low

risk

(Gro

up II

)

plas

tic m

ater

ial

20 7 4 7 4 2 4 2 1 Sam

ple

1 (1

ST im

pact

)

Sam

ple

1 (2

ND im

pact

)

Sam

ple

2 (1

ST im

pact

)

Sam

ple

2 (2

ND im

pact

)

Sam

ple

1

Sam

ple

2

Sam

ple

3

impa

ct a

pplie

d no

rmal

to fl

at su

rface

impa

ct a

pplie

d no

rmal

to ta

ngen

t to

surfa

ce

appa

ratu

s mar

ked

with

sym

bol X

re

quire

d wh

en te

sted

as lo

w ri

sk o

f mec

hani

cal d

ange

r

(enc

losu

re/p

art/s

urfa

ce/p

oint

of i

mpa

ct)

(X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X) (X)

Temperature (°C)

(20 ± 5) °C or lowest value for specified

range Plastic:

max. ambient in service,

increased by 10K to 15K

and min. ambient

in service, reduced by 5K to 10 K

(X)

dam

age

inva

lidat

ing

type

of p

rote

ctio

n (N

O/Y

ES)

disp

lace

men

t/def

orm

atio

n (fa

nhoo

d or

ven

tilat

ion

scre

en)

caus

ing

rubb

ing

by m

ovin

g pa

rts (N

O/Y

ES)

1 2 3 4

Notes: 1. The points of impact shall be the places considered by the testing station to be the weakest. 2. Applies to plastic, light/cast metal enclosures or enclosures of other materials of wall thickness < 3 mm (Group I) or < 1 mm (Group II).


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23.4.3.2/23.4.3.3 Drop test/Required results

23.4.4 Tests for the degree of protection IP by enclosures

Item: Drop test/Required results (portable apparatus) Applied to Results

Parts of plastic material:

ref. Sheet 6/12, Tests of

enclosures or parts of

enclosures in plastic

materials

Gp I, Gp II Gp I Gp I

follo

win

g te

sts o

f the

rmal

en

dura

nce

follo

win

g te

sts o

f res

istan

ce

to o

ils a

nd g

reas

es

follo

win

g te

sts o

f res

istan

ce

to h

ydra

ulic

liqu

ids

Dro

p (4

requ

ired)

Sample position

(X) (X) (X)

drop

hei

ght (

m)

Requ

ired:

1 m

ont

o a

horiz

onta

l con

cret

e su

rface

Temperature (°C)

(20 ± 5) °C or lowest value for specified

range

Plastic: min. ambient

in service, reduced by 5K to 10 K

dam

age

inva

lidat

ing

type

of p

rote

ctio

n (N

O/Y

ES)

disp

lace

men

t/def

orm

atio

n (fa

nhoo

d or

ven

tilat

ion

scre

en)

caus

ing

rubb

ing

by m

ovin

g pa

rts (N

O/Y

ES)

1 2 3 4

Tests for the degree of protection IP by enclosures Applied to: Test procedures per IEC 60529 (*test report reference): first numeral (* ) second numeral (* )

Notes: 1. Enclosures shall be considered as category 1 per IEC 60529. 2. The apparatus shall not be energised during tests. 3. When required by IEC 60529, the dielectric test in 12.3.2 of IEC 60529 shall be [(2 Un + 1000) ± 10 %] V r.m.s. applied between 10 s and 12 s, where Un = max. rated or internal voltage of the apparatus.

Test procedures per IEC 60034-5 (*test report reference): (rotating electrical machine)

first numeral (* )

machine provided with drain hole(s) intended normally to be open on site machine provided with drain hole(s) intended normally to be closed on site second numeral (* ) machine surface area, excluding mounting surface, m2 Required accuracy of 10 %

Note: Acceptance criteria shall be applied insofar as compliance with an IEC explosion protection standard is concerned in addition to normal operating conditions.

Applied acceptance criteria as required by explosion protection standard, (details and/or reference):

(IEC60079-0, 2000)


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IEC 60079-0 TYPE VERIFICATIONS AND TESTS 4/12 APPLIED CLAUSE REQUIREMENTS YES NO ENCL. 23.4.5 Torque test for bushings 23.4.6.1 Temperature measurement Item: Torque test for bushings (used for connection facilities)

Torque (Nm) Turning Stem size from Table 5 M 4 M 5 M 6 M 8 M 10

M 12

M 16

M 20

M 24

2.0 3.2 5 10 16 25 50 85 130

Part or circuit

(X) (X) (X) (X) (X) (X) (X) (X) (X)

Oth

er st

em si

ze

(M

)

Torq

ue (N

m)

may

be

dete

rmin

ed fr

om

grap

h pl

ot u

sing

Tabl

e 5

valu

es a

nd e

xtra

pola

ted

for l

arge

r siz

es

stem

in b

ushi

ng

(NO

/YES

) m

ount

ed b

ushi

ng

(NO

/YES

)

Temperature measurement Applied to: Refer to form(s) for specific type(s) of protection ( ) Apparatus input ratings: V ( Hz / d.c.), A, W / VATest voltage: V based on tolerance, (*ref. )

Note: The most unfavourable voltage within 90% and 110% of the rated voltage of the electrical apparatus shall be applied (*unless the manufacturer demonstrates that other international standards prescribe other tolerances for equivalent industrial electrical apparatus). Conditions of loading/output/operation:

Note: The test shall be performed under the most adverse conditions.

apparatus mounted in normal service position ( ) apparatus tested in different normally used positions; highest temperature (see data below) with (position): (position, if different, for hottest point of any enclosure or part of enclosure, of plastic material: )

Note: The position resulting in the highest temperature shall be marked on the apparatus and shall be denoted either by the symbol X or by a label.



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23.4.6.1 Temperature measurement (continued)

Item: Temperature measurement (continued) Temperature data:

Location Maximum temperature component/surface/part Method of measurement (°C)

ambient

Max. surface temperature ( °C); corrected for 40 °C ambient to °C or corrected for other specified ambient ( °C) to °C

Note: Measured maximum temperature (corrected for max. ambient) for surfaces exposed to potentially explosive atmospheres shall not exceed: - for Group I electrical apparatus, the maximum surface temperature specified under COVERAGE, Sheet 3/4

- for Group II electrical apparatus where each manufactured sample is routinely tested, the maximum temperature marked on the apparatus - for Group II electrical apparatus subjected to type testing, the marked temperature less 5 K for temperature classes T6, T5, T4 and T3 and less 10 K for temperature classes T2 and T1

Hottest of enclosure/part of enclosure of plastic material: temperature, °C); corrected for 40 °C ambient to °C or

corrected for other specified ambient ( °C) to °C Value to be recorded on Sheet 1/7, CONSTRUCTION, Non-metallic enclosures and non-metallic parts of enclosures, Thermal endurance.

(IEC60079-0, 2000)


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23.4.6.2 Thermal shock test

23.4.7/23.4.7.1 Tests of non-metallic enclosures or of non-metallic parts of enclosures/Ambient temperatures during tests

23.4.7.2 Tests of enclosures or parts of enclosures in plastic materials

Item: Thermal shock test (glass parts of luminaires and windows of electrical apparatus) Applied to: subjected to a jet of water ≅ 1mm dia. at 10 ± 5 °C with glass part at max. service temperature ( °C)Breakage of glass part(s): NO YES; Tests of non-metallic enclosures or of non-metallic parts of enclosures/Ambient temperatures during tests For the purposes of this standard or the standards for specific types of protection, the tests carried out as a function of permissible upper and lower ambient temperature values comply with the following: maximum ambient in service increased by 10 K to 15 K for the upper ambient temperature maximum ambient in service reduced by 5 K to 10 K for the upper ambient temperature Tests of enclosures or parts of enclosures in plastic materials Applied to

Group I electrical apparatus: refer to forms for IEC 60079-1,

ANNEX A, Sheets 2/12 through 7/12

Rationale re tests specific to the type of protection that were waived for conditioned samples and/or tests specific to the type of protection that were conducted in conjunction with conditioning tests:

1ST test sequence; - thermal endurance to heat (on 2 samples) - thermal endurance to cold (on 2 samples) - mechanical tests (on 2 samples) - tests specific to type of protection 2ND test sequence; - resistance to oils and greases (on 2 samples) - mechanical tests (on 2 samples) - tests specific to type of protection 3RD test sequence; - resistance to hydraulic liquids (on 2 samples) - mechanical tests (on 2 samples) - tests specific to type of protection Group II electrical apparatus: refer to forms for IEC 60079-1,

ANNEX A, Sheets 8/12 and 9/12 test sequence; - thermal endurance to heat (on 2 samples) - thermal endurance to cold (on 2 samples) - mechanical tests (on 2 samples) - tests specific to type of protection

(IEC60079-0, 2000)


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23.4.7.3 Thermal endurance to heat

23.4.7.4 Thermal endurance to cold

Item:

Thermal endurance to heat

Applied to refer to forms for IEC 60079-1, ANNEX A, Sheet 2/12 (Group I) refer to forms for IEC 60079-1, ANNEX A, Sheet 8/12 (Group II) Maximum service temperature ≤ 75 °C: continuous storage for weeks Required: four weeks relative humidity, % Required: 90 ± 5% temperature, °C Required: 80 °C ≤ (20 ± 2) K above maximum service temperature Maximum service temperature > 75 °C: continuous storage for weeks at °C and % relative humidity Required: two weeks at (95 ± 2) °C and (90 ± 5)% relative humidity

and weeks at °C Required: two weeks at (20 ± 2) K above maximum service temperature Observations : Thermal endurance to cold refer to forms for IEC 60079-1, ANNEX A, Sheet 2/12 (Group I) refer to forms for IEC 60079-1, ANNEX A, Sheet 8/12 (Group II)

continuous storage for h at °C

Required: 24 h at minimum ambient in service, reduced by 5K to 10 K Observations:

(IEC60079-0, 2000)


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23.4.7.5 Resistance to light

Item:

Resistance to light (enclosure or parts of plastic materials)

refer to forms for IEC 60079-1, ANNEX A, Sheet 11/12 refer to forms for IEC 60079-18, ANNEX C, Sheet 2/2

test not applied (i.e. enclosure/part protected from light; details: )

Note: Protected from light; (e.g.) protected from daylight or light from luminaires.

apparatus marked X not applicable (i.e. Group I apparatus other than a luminaire) Impact bending strength (ISO 179):

Before exposure After exposure

break break Component

Spec

imen

No

impact energy

absorbed (kJ/m2) YES NO

Period of exposure

(h)

impact energy

absorbed (exposed side)

(kJ/m2) YES NO

1 2 3 4 5

6 1 2 3 4 5

6 Notes (i) The test shall be made on six test bars of standard size 50 mm × 6 mm × 4 mm according to ISO 179. (ii) Test bars shall be produced under conditions equivalent to those used to produce the actual enclosure and the conditions shall be

stated in the test report. (iii) The test shall be made in accordance with ISO 4892 (i.e. exposure chamber using xenon lamp and sunlight simulating filter system,

at a black panel temperature of (55 ± 3) °C). (iv) Exposure time shall be 1000 h. (v) Impact bending strength (on exposed side) shall be ≥ 50% of corresponding value measured on unexposed test piece. (vi) Where the impact bending strength cannot be determined prior to exposure (i.e. no rupture), not more than three of the exposed test bars may break.

test bars were made under conditions equivalent to those used to produce the actual enclosure; details:

(IEC60079-0, 2000)


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23.4.7.6 Resistance to chemical agents for Group I electrical apparatus

Resistance to chemical agents for Group I electrical apparatus Enclosure samples (4 in total), conditioned as below: refer to forms for IEC 60079-1, ANNEX A, Sheet 4/12 (oils and greases) refer to forms for IEC 60079-1, ANNEX A, Sheet 6/12 (hydraulic liquids)

sealed against intrusion of test liquids (method); Oils and greases: (2 samples) immersed for h in No. 2 oil (ref. ISO 1817) at °C Required: (24 ± 2) h at 50 °C ± 2 °C samples removed from liquid bath and stored for h in laboratory atmosphere (ambient, °C) Required: samples carefully wiped and stored for (24 ± 2) h Observations: Hydraulic liquids for mining applications: (2 samples) immersed for h in an aqueous solution of polymer in 35% water at °C Required: (24 ± 2) h at 50 °C ± 2 °C samples were removed from liquid bath and stored for h in laboratory atmosphere (ambient, °C) Required: samples carefully wiped and stored for 24 h Observations: Ref. Sheet 3/12, Drop test and/or Sheet 2/12, Test for resistance to impact: all enclosure samples withstand mechanical tests one or more enclosure samples do not withstand mechanical tests; special conditions of safe use stated in certificate and apparatus marked with symbol X

(IEC60079-0, 2000)


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23.4.7.8 Insulation resistance test of parts of enclosures of plastic materials

23.4.8 Tests in explosive mixtures

Item: Insulation resistance test of parts of enclosures of plastic materials Applied to:

(refer to CONSTRUCTION, Sheet 1/7, Non-metallic enclosures and non-metallic parts of enclosures)

Preparation of test piece; using intact surface of: part itself

or test piece at least 149 mm by 59.5 mm two parallel electrodes painted per Fig. 4, using conducting paint;

Note: Conducting paint solvent must not have significant effect on insulation resistance.

part cleaned with (in turn): distilled water *isopropyl alcohol *alternatively, Note: Alternative solvent must be miscible with water and must not affect specimen material. distilled water

Note: Following cleaning the part must be subjected to conditioning without being touched by hand. part conditioned for 24 h in a clean atmosphere at:- (23 ± 2) °C

and (50 ± 5) % R.H.

Test: (conducted under ambient conditions) (500 V ± 10) V d.c. applied between electrodes for 1 min.

Note: Applied voltage shall be sufficiently steady for the charging current due to voltage fluctuation to be negligible compared with current flowing through the test piece.

method of measurement;

d.c. voltage applied between electrodes insulation resistance =

total current flowing between electrodes=

= Ω

Note: The voltage and current are determined when the voltage has been applied for 1 min.

Tests in explosive mixtures Applied to: ref. form(s) for specific type(s) of protection ( ) Test gases and vapours: known purity ≥ 95% details; (optional) Note: The purity of commercially available gases and vapours is in general satisfactory but if their purity is below 95% they should not be used.

(IEC60079-0, 2000)


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24 Routine verifications and tests

25 Manufacturer's responsibility

Item: Routine verifications and tests (as necessary to ensure that the electrical apparatus produced complies with specifications submitted to the testing station together with the prototype or sample; see also routine verifications and tests required per forms for the specific type(s) of protection) Applied to: 1) refer to forms for specific type(s) of protection ( ) refer to specification(s) submitted per manufacturer's documents list, Item(s): per established procedure(s): Details: Applied to: 2) refer to forms for specific type(s) of protection ( ) refer to specification(s) submitted per manufacturer's documents list, Item(s): per established procedure(s): Details: Applied to: 3) refer to forms for specific type(s) of protection ( ) refer to specification(s) submitted per manufacturer's documents list, Item(s): per established procedure(s): Details: Manufacturer's responsibility (refer to Marking sheets of this form set and of forms for specific types of protection) By marking the electrical apparatus as recorded in this report the manufacturer attests on his own responsibility that the electrical apparatus has been constructed in accordance with the applicable requirements of the relevant standards in safety matters, that routine verifications and tests have been successfully completed and that the product complies with the specification submitted to the testing station.

(IEC60079-0, 2000)


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26 Verifications and tests on modified or repaired electrical apparatus

Item: Verifications and tests on modified or repaired electrical apparatus (ref. IEC 60079-19, except mines/explosives) Nature of modification of apparatus affecting the integrity of the type of protection or affecting temperature: Re-evaluation/re-testing by the testing station :

ref. REPORT No

refer

to fo

rms f

or

IEC

600

79-

Clause(s) Form

e.g. title, Sheet _/_, Page

New

/Rev

ised

Assembly or part modified

only the above forms are included in this report Note: In the case of repairs to electrical apparatus affecting the type of protection, the parts which have been repaired should be subjected to new routine verifications and tests which need not necessarily be made by the manufacturer. This report does not confirm acceptability of the repair of electrical apparatus.

(IEC60079-0, 2000)


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IEC 60079-0 MARKING 1/2 APPLIED


27 Marking Item: Marking Note: This sheet covers major marking content. See forms for specific types of protection for other required markings. listed manufacturer's documents illustrate applied markings which include the details indicated below Manufacturer's identification:

*manufacturer=s name (or *registered trademark) type identification

serial number (except for very small electrical apparatus on which there is very limited space or connection accessories) batch number (alternative to serial number) Designations: 4Temperature Group II apparatus

2*Symbol of type of

protection

3Group symbol Ambient otherwise symbol X

Maximum surface temperature

1 *Sy

mbo

l Ex

Max

imum

surf

ace

tem

pera

ture

G

roup

I ap

para

tus;

ref.

CO

VER

AG

E, S

heet

3/4

T a a

nd sp

ecia

l ran

ge

T am

b and

spec

ial r

ange

"__°

C (T

__)"

"_

_°C"

onl

y m

ax. s

urfa

ce te

mpe

ratu

re >

450

°C

Applied to: (apparatus or part)

different apparatus parts having different types of protection, shall each bear the symbol for the specific type of protection where more than one type of protection is used, the symbol for the main type of protection shall be followed by the symbols for the other types of protection

(X)

(d, e

, m, o

, p, q

)

(ia, [

ia],

ib, [

ib])

(nA

, nC,

nR

)

(s) w

ithou

t sym

bol E

x

(I, I

/II, I

/IIA

, I/II

B, I

/IIC

)

(II,

IIA

, IIB

, IIC

)

II(c

hem

ical

form

ula

or n

ame

of g

as)

(X) (X) (X) Te

mpe

ratu

re c

lass

T(1

, 2, 3

, 4, 5

, 6)

(°C)

(X) (X)

Notes: 1. The symbol "s" shall be marked on electrical apparatus not in compliance with IEC 60079 but recognized as safe. 2. Apparatus marked IIB is suitable for Group IIA and similarly, apparatus marked IIC is suitable for Groups IIB and IIA. 3. Cable entries need not be marked with the temperature class. 4. Group II electrical apparatus marked for use in a particular gas need not have a temperature reference. 5. Superscript numerals (1, 2, 3, 4) denote the order in which markings shall be placed.

Associated apparatus for Group II, having protection in addition to type "i" and sub-divisions differ: [ia II ] [ib II ] Other markings normally required by the standards of construction of the electrical apparatus: (optional verification)



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IEC 60079-0 MARKING 2/2 APPLIED


27 Marking (continued) Item: Marking (continued) Markings denoting that a certificate has been issued: *name/mark of testing station ( ) and *certificate reference ( )

Required: Last two figures of year of certification followed by serial number of certificate in that year Indication of special conditions for safe use (*symbol X, placed after certificate reference):

special conditions noted in the certificate warning markings (alternative to X marking)

see forms for specific types of protection Ex components: the foregoing markings (except serial number, temperature) are included and , in addition *symbol U (the symbol X shall not be used) Reduction of marking content where there is limited space; applied to: (very small apparatus and Ex components)

Refer to foregoing markings (Sheets 1/2, 2/2) denoted by asterisk (*)

Method of marking: Note: The electrical apparatus shall be marked on the main part in a visible place in a legible and durable manner considering chemical corrosion.

(IEC60079-0, 2000)


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IEC 60079-0 ANNEX B Ex CABLE ENTRIES 1/9 APPLIED


B.1 General

B.2.1, B2.2 Cable sealing/Materials

Type: General Allowable cable size: a) b) c) d) e)

refer to forms for specific type(s) of protection ( ) Cable type(s) accommodated: non-armoured braided armoured Cable sealing/Materials (between cable and entry body; ref. figure B.1)

Note: Cable sealing may be made of a single material or a combination of materials.

elastomeric sealing ring (material) refer to Sheet 8/9, Ageing test for material used for elastomeric sealing rings

metallic sealing ring (material)

composite sealing ring (material)

filling compound (material) refer to CONSTRUCTION, Sheet 3/7, Materials used for cementing combination (details) Exposed non-metallic parts of cable entry; details:

refer to CONSTRUCTION, Sheet 1/7, Non-metallic enclosures and non-metallic parts of enclosures, Electrostatic charges on enclosures or parts of enclosures of plastic material

(IEC60079-0, 2000)


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B.2.3 Clamping

B.2.4 Lead-in of cable

Type: Clamping Method whereby cable entry prevents pulling/twisting of cable from being transmitted to connections: clamping device (details) by a sealing ring (details) by filling compound (details) by the sealing ring noted under Cable sealing/Materials on Sheet 2/9 (for unarmoured cable)

by the filling compound noted under Cable sealing/Materials on Sheet 2/9 (for unarmoured cable)

other (details) Group II cable entry without a clamping device; evaluated to reduced clamping test values: refer to Sheets 2/9 and 3/9, Tests of clamping of non-armoured and braided cables

Note: Clamping test values may be reduced to 25% of those specified for the relevant tests

statements in descriptive documents limiting use to fixed installations and re clamping of cable by user and cable entry marked with symbol X Lead-in of cable Cable entry: no sharp edges capable of damaging the cable; for flexible cable, the point of entry includes a rounded edge ≥ 75° with radius R (figure B.2) ≥ ¼ dia. of maximum admissible cable (need not exceed 3 mm) ref. manufacturer's documents list, Item can only be released/dismantled by tool ( ) refer to Sheets 3/9 through 8/9 re mechanical tests of clamping and resistance to impact refer to Sheet 9/9, Type test for degree of protection (IP) of cable entries

(IEC60079-0, 2000)


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B.3.1 Tests of clamping of non-armoured and braided cables

Type: Tests of clamping of non-armoured and braided cables Cable entry with clamping by the sealing ring; preparation of test samples: applied to armoured cable where the armouring is not clamped by a device within the gland

1 smallest admissible cable size:

a) 2 largest admissible cable size:


b) 4 largest admissible cable size:


c) 6 largest admissible cable size:


d) 8 largest admissible cable size:


e) 10 largest admissible cable size:

Elastomeric Metallic Assembly, fitted into cable entry circular cable non-circular cable

Torque applied to prevent slipping of mandrel/cable with applied force, N

ref. Sheet 6/9, Tensile test and Mechanical Strength

scre

ws o

f fla

nged

com

pres

sion

elem

ent

fitte

d w

ith sc

rew

s

nut o

f scr

ewed

com

pres

sion

ele

men

t

20 ×

val

ue in

mm

of d

ia. o

f man

drel

or

cab

le (r

ound

cab

le)

6 ×

valu

e in

mm

of p

erim

eter

of c

able

(n

on-c

ircul

ar c

able

)

valu

e re

duce

d to

25

% fo

r Gro

up II

ca

ble

entry

with

out c

lam

ping

dev

ice

Seal

ing

ring

mou

nted

on

clea

n, d

ry, p

olis

hed,

cyl

indr

ical

m

ild st

eel m

andr

el o

f dia

met

er:

(mm

) eq

ual t

o th

e sm

alle

st c

able

dia

met

er a

llowa

ble

in

the

ring

and

spec

ified

by

cabl

e en

try

man

ufac

ture

r

mou

nted

on

a sa

mpl

e of

dry

, cl

ean

cabl

e of

dim

ensio

ns:

dim

ensio

ns e

qual

to th

e si

ze sp

ecifi

ed

by th

e ca

ble

entr

y m

anuf

actu

rer

mou

nted

on

a sa

mpl

e of

dry

, cl

ean

cabl

e of

dia

met

er:

(mm

) di

amet

er e

qual

to th

e sm

alle

st ca

ble

diam

eter

allo

wabl

e in

the

ring

and

spec

ified

by

the

cabl

e en

try

man

ufac

ture

r

(Nm) (Nm) (X) (X)

(N)

(X) 1 2

3 4

5 6

7 8

9 10

Notes: Torque figures may be determined experimentally prior to tests or may be supplied by the manufacturer of the cable entry. continued on Sheet 4/9

(IEC60079-0, 2000)


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B.3.1 Tests of clamping of non-armoured and braided cables (continued)

Type: Tests of clamping of non-armoured and braided cables (continued) Cable entry with clamping by filling compound; preparation of test samples: applied to armoured cable where the armouring is not clamped by a device within the gland 1 smallest admissible size:

a) 2 largest admissible size:

3 smallest admissible size:

b) 4 largest admissible size:


c) 6 largest admissible size:


d) 8 largest admissible size:


e) 10 largest admissible size:

Shape of cable Filling

compound

Filling compound prevents slippage

of cable with applied force, N

ref. Sheet 6/9, Tensile test and Mechanical Strength

circu

lar

non-

circ

ular

prep

ared

as s

tate

d by

the

man

ufac

ture

r of

the

cabl

e en

try

fille

d in

to a

vaila

ble

spac

e

allo

wed

to h

arde

n in

acc

orda

nce

with

th

e m

anuf

actu

rer's

instr

uctio

ns

20 ×

val

ue in

mm

of d

ia. o

f man

drel

or

cabl

e (c

ircul

ar c

able

) 6

× va

lue

in m

m o

f per

imet

er o

f cab

le

(non

-circ

ular

cab

le)

redu

ced

to 2

5 %

for G

roup

II c

able

ent

ry

with

out c

lam

ping

dev

ice

Sam

ple

of c

lean

, dry

cab

le, f

itted

in c

able

ent

ry

(X) (X) (X) (X) (X) (X) (X)

(N)

(X) 1 2 3 4 5 6 7 8 9 10

continued on Sheet 5/9

(IEC60079-0, 2000)


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Type: Tests of clamping of non-armoured and braided cables (continued)

Cable entry with clamping by means of a clamping device; preparation of test samples: applied to armoured cable where the armouring is not clamped by a device within the gland

a) clamping device for cable size: b) clamping device for cable size: c) clamping device for cable size: d) clamping device for cable size: e) clamping device for cable size: Assembly, fitted in cable entry

Torque applied to prevent slipping

of cable with applied force, N ref. Sheet 6/9, Tensile test and Mechanical Strength

circ

ular

cab

le o

f dia

met

er a

llow

able

in th

e de

vice

an

d sp

ecifi

ed b

y th

e m

anuf

actu

rer o

f the

cab

le e

ntry

no

n-ci

rcul

ar c

able

of d

imen

sions

equ

al to

the

size

spec

ified

for u

se w

ith th

e se

alin

g rin

g

scre

ws o

f fla

nged

com

pres

sion

el

emen

t fitt

ed w

ith sc

rew

s

nut o

f scr

ewed

com

pres

sion

ele

men

t

clam

ping

dev

ice

20 ×

val

ue in

mm

of d

ia. o

f man

drel

or

cab

le (c

ircul

ar c

able

) 6

× va

lue

in m

m o

f per

imet

er o

f cab

le

(non

-circ

ular

cab

le)

Cla

mpi

ng d

evic

e w

ith c

lean

, dry

cab

le a

nd se

alin

g rin

g

(X) (X)

Larg

est s

ize

of c

able

allo

wab

le in

seal

ing

ring

and

spec

ified

by

the

man

ufac

ture

r of t

he c

able

ent

ry

cl

ampi

ng d

evic

e te

sted

shal

l hav

e th

e ca

paci

ty fo

r thi

s siz

e

(Nm) (Nm) (Nm) (X) (X)

(N)

a) b) c) d) e)

Notes: Torque figures may be determined experimentally prior to tests or may be supplied by the manufacturer of the cable entry.



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Type: Tests of clamping of non-armoured cables in cable entries (continued) Tensile test:

Tensile force

Slippage ≤ 6mm allowed

cons

Documents

IECEx ASSESSMENT AND TEST REPORT - Эрвист · 2018. 5. 28. · IECEx ASSESSMENT AND TEST REPORT Page of ATR600790/Version 3 Page 3 of 51 Reference No: IEC 60079-0 Results Clause